Chem v1/v2, AP V1/V2, HESI A2 Biology Questions And Answers
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Hesi A2
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Hesi A2
Chem v1/v2, AP V1/V2, HESI A2 Biology Questions And Answers
1. If a Hydrogen is in a compound, what would its oxidation number be?: +1
2. What is the oxidation number of any simple ion?: The same as charge of the ion
3. How many kilograms are in a pound?: 0.453592 kg
4. What is the temperatur...
Chem v1/v2, AP V1/V2, HESI A2 Biology Questions And Answers
1. If a Hydrogen is in a compound, what would its oxidation number be?: +1
2. What is the oxidation number of any simple ion?: The same as charge of the
ion
3. How many kilograms are in a pound?: 0.453592 kg
4. What is the temperature for freezing point of water in Celsius?: 0 degrees
Celsius (32°F for Fahrenheit)
5. What is the conversion of Celsius to Fahrenheit?: 5F=9C+160 (remember 5F
because you have 5 fingers on a hand and 9C because cats have 9 lives)
6. What is the oxidation number of an element atom?: 0
7. What is the freezing point of sea water in Fahrenheit?: -2C
8. How many amino acids are in a dipeptide?: 2
9. If Oxygen is in a compound, what would its oxidation number be?: -2
10. Which of the following pH values would lemon juice likely have?: 2 because
the lower the pH value, the more acidic
11. What is a pentose?: A 5 carbon sugar (Pent = 5) (ose = sugar)
12. What is the oxidation state of the Sulfur atom in Sulfuric Acid H2SO4?: -
6(each H is +1, each O is -2. All charges have to add to 0. 2+S-8=0
13. How many neutrons does carbon 14 have?: 8 ( mass# - atomics # = neutrons)
14 6= 8
14. How many protons does Potassium have?: 19
15. How many amino acids are essential for human life: 20 amino acids
16. Normal body temperature in °C?: 37°C
17. Normal body temperature in °F?: 98.6°F
18. Boiling point of water in °C?: 100°C
19. Boiling point of water in °F?: 212°F
20. 0°K is equal to°C?: -273°C
21. The term Amphoterie means?: A substance that can act as both a base & acid
22. What is Kelvin based around?: Absolute zero
23. A compound that is Hydrogen or proton donor, corrosive to metals, causes
blue litmus paper to become red and becomes less acidic when mixed with a
base is?: Acid
24. Mixture of 2 or more metals are?: Alloys
25. pH less than 7.0 sour/tart Formulas begin with H (Hydrogen) Proton Donor-
: Acids:
26. 3 types of radiation in nuclear chemistry?: Alpha, Beta & Gamma
27. Emission of Helium (He) ions in the nuclei Contains 2 protons & 2 neutrons.
+2 Charge radiation particle. Can Largest be stopped by piece of paper: Alpha
radiation
,Chem v1/v2, AP V1/V2, HESI A2 Biology Questions And Answers
28. Type of Alloy in which another metal is dissolved in Mercury (Hg)?: Amal-
gam
29. Proteins are made up of?: Amino acids
30. Glycogen is what kind of starch?: Animal Starch
31. When an atom GAINS ONE or more electrons: Anions (negative ion)
32. Basic building block of a molecule?: Atom (NOT CELL!!)
33. Atomic mass?: Average mass of a elements isotope
34. Atomic #:: # of protons in nucleus of an atom
35. A Hydrogen or proton ACCEPTOR & has hydroxide group in the makeup
of the molecule Produce -OH Bitter, slippery, conduct electricity, formulas
contain -OH pH value greater than 7.0 Proton acceptor: Base
36. are Proton donors as Bases are proton acceptors: Acids
37. Decomposition product of a proton or neutron High speed/energy Elec-
trons EITHER - charged electrons or + charged positrons Can be stopped by
aluminum foil: Beta radiation:
38. What is Biochemistry?: Study of substances & processes occurring in living
things
39. Fahrenheit is based off of?: Body temp
40. How does ‘ Surface area speed up chemical reactions? of contact reac-
tions: By ‘ areas of contact where chemical reactions can occur
41. How do catalyst accelerate a chemical reaction?: By reducing the amount of
energy needed for a reaction to occur
42. What does COOH symbolize?: Carboxyl group
43. Which of the following is not a solution type?: Catalyst
44. Define Catalyst.: Substance that speeds up a chemical reaction. 1
45. What is an atom called when it LOSES 1 or more electrons?: Cations
(positive ions)
46. What is chemical bonding?: The joining of atoms to form new substances. 2
types: ionic & covalent bonding
47. Electrical attraction between 2 oppositely charged atoms groups of atoms
called ions (between metals & nonmetals): What is a Ionic bond?
48. Chemical bond that's formed when an atom transfers a electron to another
atom. (steals): Ionic bonding
49. Chemical bond that shares I electron pair Formed by non-metals: Single
Covalent bond?
50. Making & breaking of chemical bonds, leading to changes in composition
of matter: What are chemical reactions?
51. Double Covalent bond?: When 2 electron pairs are shared
52. Triple Covalent bond?: When 3 electron pairs are shared
, Chem v1/v2, AP V1/V2, HESI A2 Biology Questions And Answers
53. 2C2H6 (g) + 702 (g) = 4CO2(g) + 6H2O: Combustion reaction
54. What is a combustion reaction?: A chemical reaction that occurs when a
substance reacts with Oxygen, releasing energy in the form of heat & light
55. What is a compound?: Combination of 2 or more elements or atoms. • Made
up of atoms of 2 or more different elements joined by chemical bonds solutions?
56. Attractions between opposite charges of polar moles?: Dipole-dipole forces
57. What is a Disaccharide?: A double sugar molecule made of 2 monosaccha-
rides bonded together through dehydration synthesis.
58. When 2 monosaccharides are joined together this makes?: Disaccharide
59. Type of chemical bond that share 2 electron pairs?: Double covalent bond
60. Example of double replacement?: AB + CD = AD + CB
61. Example of Single replacement?: A+ BC =B + AC
62. Electron clouds: Group of electrons revolving around the nucleus of an atom,
or known as a cloudlike group of electrons?
63. Mixtures of matter that readily separate such as water and oil?: Emulsion
64. 3 common temperature systems?: Fahrenheit, Celsius, Kelvin
65. Celsius is based around?: Freezing & boiling point of water
66. What is reduction?: GAIN of electrons
67. Similar xrays • Can be stopped by several feet of concrete or several
inches of Lead • High energy electromagnetic radiation lacking charge and
mass: Gamma radiation:
68. Unit measure of weight?: Gram
69. Different types of solutions?: Compounds, Alloys, Amalgams, Emulsions
70. Strongest type of chemical bond?: Covalent
71. What is a decomposition reaction?: A SINGLE compound breaks down to
form 2 or more simpler substances
72. What is Deoxyribose?: A sugar used in the formation of DNA
73. Basic units of METRIC system?: Gram, Liter Meter
74. What are Hydrogen bonds?: Weak attraction between a hydrogen atom &
another atom
75. Examples of intermolecular forces?: Hydrogen bonds, dipole-dipole, disper-
sion forces(attractions between 2 different molecules. They are ionic and covalent
bonds within a single molecule)
76. 4 basic ways to speed up a reaction?: 1 temperature, ‘ Surface area, ‘ catalys
& concentration
77. What are intermolecular forces?: Forces of attractions between molecules
78. Where are nucleic acids, DNA RNA found?: Cell nucleus
79. Atoms of the same element but have different numbers of neutrons?: Iso-
tope
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